boeing has completed 20 test flights with the new technology. it's dreamliner fleet was grounded in mid-january after batteries caught fire on at least two jets. >>> it appears many american women chose to ignore a 2009 government recommendation against the wide use of mammograms. a study of nearly 28,000 women found that ma'amography rates actually rose slightly in women 40 do 49 years of age. between 2008 and 2011. you may recall in 2009 the u.s. preventative services task force recommended against routine mammogram breast screenings for women in that age range. several prominent professional and advocacy groups recommended that women do continue to receive the screenings. the study appears in the journal "cancer." coming you, the latest in the massachusetts manhunt. new details on the capture of the terror suspect as boston celebrates the end of a nightmare. and a milestone for alternative energy. there's a fleet of garbage trucks that run on gas. we've all. >> welcome back at 5:30 on this saturday morning. we are starting with a quick look a